Alexander Zemlianichenko / Associated Press Three polar bear cubs born in November last year, play on snow at the Moscow Zoo, in Moscow, Tuesday, March The cubs have.

Novosibirsk, Russia {} Polar bear cub plays with polar bear mother Gerda in the zoo in Novosibirsk, Russia. The first cub of polar bear couple Kai and Gerda was born at Novosibirsk Zoo in early December story.